Biomaterial Database

Feedback effects on target search and velocity extrapolation by mentally retarded and nonretarded adolescents. 1982

E A Holden, and J G Corrigan

Equal-CA EMR and nonretarded adolescents stylus-tracked an intermittently disappearing rotary pursuit target with no feedback, auditory feedback, and visual feedback. With no feedback both groups demonstrated an approximately equal increase in distance errors during an 18-second period following disappearance of the target. With auditory and visual feedback, the nonretarded group remained closer to the target than with no feedback and closer than the retarded group under all three feedback conditions. Retarded subjects made more distance errors on a static search task requiring the use of auditory or visual feedback to locate a stationary target. Matching subsets of subjects from both groups on the basis of performance during the static search task eliminated differences in tracking performance during feedback. The ability to use feedback during static search predicted the ability to use feedback during rotary pursuit tracking.

UI	MeSH Term	Description	Entries
D008607	Intellectual Disability	Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28)	Disability, Intellectual,Idiocy,Mental Retardation,Retardation, Mental,Deficiency, Mental,Intellectual Development Disorder,Mental Deficiency,Mental Retardation, Psychosocial,Deficiencies, Mental,Development Disorder, Intellectual,Development Disorders, Intellectual,Disabilities, Intellectual,Disorder, Intellectual Development,Disorders, Intellectual Development,Intellectual Development Disorders,Intellectual Disabilities,Mental Deficiencies,Mental Retardations, Psychosocial,Psychosocial Mental Retardation,Psychosocial Mental Retardations,Retardation, Psychosocial Mental,Retardations, Psychosocial Mental
D005246	Feedback	A mechanism of communication within a system in that the input signal generates an output response which returns to influence the continued activity or productivity of that system.	Feedbacks
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D001245	Association Learning	The principle that items experienced together enter into a connection, so that one tends to reinstate the other.	Association Learnings,Learning, Association,Learnings, Association
D013647	Task Performance and Analysis	The detailed examination of observable activity or behavior associated with the execution or completion of a required function or unit of work.	Critical Incident Technique,Critical Incident Technic,Task Performance,Task Performance, Analysis,Critical Incident Technics,Critical Incident Techniques,Incident Technic, Critical,Incident Technics, Critical,Incident Technique, Critical,Incident Techniques, Critical,Performance, Analysis Task,Performance, Task,Performances, Analysis Task,Performances, Task,Task Performances,Task Performances, Analysis,Technic, Critical Incident,Technics, Critical Incident,Technique, Critical Incident,Techniques, Critical Incident
D013996	Time and Motion Studies	The observation and analysis of movements in a task with an emphasis on the amount of time required to perform the task.	Time Studies,Studies, Time,Study, Time,Time Study